There is another popular analogy of the process God uses to sanctify us. It is a refiner purifying gold. He applies extreme heat to burn away all impurities. He knows the gold is pure when he sees his reflection in it. God gets rid of all of our impurities and when He is done He can see His image reflected back from us. However we describe it, the process completes our transformation to a son or daughter of God. Our family resemblance is there for all to see.